<template>
	<view>
		<!-- 使用自定义的搜索组件 -->
		<view class="search-box">
			<my-search @click="gotoSearch"></my-search>
		</view>
		<!--轮播图区域-->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<!--循环渲染轮播图的item项-->
			<swiper-item v-for="(item, i) in swiperList" :key="i">
				<navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
					<!--动态绑定图片的src 属性-->
					<image :src="item.image_src"></image>
				</navigator>
			</swiper-item>
		</swiper>
		<!--分类导航区域-->
		<view class="nav-list">
			<view class="nav-item" v-for="(item, i) in navList" :key="i" @click="navClickHandler(item)">
				<image :src="item.image_src" class="nav-img"></image>
			</view>
		</view>
		<!--楼层区域-->
		<view class="floor-list">
			<!--楼层item项-->
			<view class="floor-item" v-for="(item, i) in floorList" :key="i">
				<!--楼层标题-->
				<image :src="item.floor_title.image_src" class="floor_title"></image>
				<!--楼层图片区域-->
				<view class="floor-img-box">
					<!--左侧大图片的盒子-->
					<navigator class="left-img-box" :url="item.product_list[0].url">
						<image :src="item.product_list[0].image_src" :style="{ width: item.product_list[0].image_width + 'rpx' }" mode="widthFix"></image>
					</navigator>
					<!--右侧4个小图片的盒子-->
					<view class="right-img-box">
						<navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
							<image :src="item2.image_src" mode="widthFix" :style="{ width: item2.image_width + 'rpx' }"></image>
						</navigator>
					</view>
				</view>
			</view>
		</view>

	</view>
</template>

<script>
export default {
	data() {
		return {
			swiperList: [],
			//分类导航的数据列表
			navList: [],
			//楼层的数据列表
			floorList: [],
		}
	},
	onLoad() {
		this.getSwiperList(),
			//在onload中调用获取数据的方法
			this.getNavList(),
			//在onload中调用获取数据的方法
			this.getFloorList()
	},
	methods: {
		async getSwiperList() {
			const {
				data: res
			} = await uni.$http.get('/api/public/v1/home/swiperdata')
			if (res.meta.status !== 200) return uni.$showMsg()
			this.swiperList = res.message
		},
		//在methods中定义获取数据的方法
		async getNavList() {
			const {
				data: res
			} = await uni.$http.get('/api/public/v1/home/catitems')
			if (res.meta.status !== 200) return uni.$showMsg()
			this.navList = res.message
		},
		//定义获取楼层列表数据的方法
		async getFloorList() {
			const {
				data: res
			} = await uni.$http.get('/api/public/v1/home/floordata')
			if (res.meta.status !== 200) return uni.$showMsg()

			//通过双层forEach循环，处理url地址
			res.message.forEach(floor => {
				floor.product_list.forEach(prod => {
					prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
				})
			})
			this.floorList = res.message
		},

		//nav_item项被点击时候的事件处理函数
		navClickHandler(item) {
			//判断点击的是哪个nav
			if (item.name === '分类') {
				uni.switchTab({
					url: '/pages/cate/cate'
				})
			}
		},
		gotoSearch() {
			uni.navigateTo({
				url: '/subpkg/search/search'
			})
		}
	},

}
</script>

<style lang="scss">
swiper {
	height: 330rpx;

	.swiper-item,
	image {
		width: 100%;
		height: 100%;
	}
}

.nav-list {
	display: flex;
	justify-content: space-around;
	margin: 15px 0;

	.nav-img {
		width: 128rpx;
		height: 140rpx;
	}
}

.floor_title {
	height: 60rpx;
	width: 100%;
	display: flex;
}

.right-img-box {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
}

.floor-img-box {
	display: flex;
	padding-left: 10rpx;
}

.search-box {
	// 设置定位效果为“吸顶”
	position: sticky;
	// 吸顶的“位置”
	top: 0;
	// 提高层级，防止被轮播图覆盖
	z-index: 999;
}
</style>
